[VBLOCKS-330] Listen for multiple answer events.

[mhuynh5757]

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Pull Request Details

JIRA link(s):

• VBLOCKS-330

Description

This PR enables the SDK to listen for multiple answer events from the Twilio backend. This resolves some signaling reconnection issues.

Burndown

Before review

• Updated CHANGELOG.md if necessary
• Added unit tests if necessary
• Updated affected documentation
• Verified locally with npm test
• Manually sanity tested running locally
• Ready for review

Before merge

• Got one or more +1s
• Squashed erroneous commits if necessary
• Re-tested if necessary

[charliesantos]

Code looks good. Should we add integration tests?

[mhuynh5757]

Code looks good. Should we add integration tests?

Whoops, I added the network/integration tests to the other PR #41, I'll pick them and add them here.